Fwd: Add SCSI passthrough to CTL

[Bhimanshu Kumar]

*Introduction : *CTL is the FreeBSD SCSI target layer. There are various
SCSI commands, but it's usually used for block-level access. This projects
focuses on making CTL capable of providing physical optical drive as a
whole to the initiator machine
Link : https://github.com/bhimanshu1997/freebsd

Report:
1. Added peripheral device parser in CTLD, for example "/dev/cd0" will be
parsed to get "cd0".
2. Code added for the checks, like, passthrough device should not go with
path and size of the LUN.